A volleyball net post needs a cable to support it the hook to attach the cable is 4 ft above the court surface and the hook in the floor is 3 ft from the base of the post how long should the cable be

1 answer

To determine the length of the cable needed to support the volleyball net post, we can use the Pythagorean theorem. The setup forms a right triangle where:

  • One leg is the vertical distance from the hook on the post to the court surface (4 ft).
  • The other leg is the horizontal distance from the base of the post to the hook on the floor (3 ft).
  • The hypotenuse will be the length of the cable we want to calculate.

Using the Pythagorean theorem:

\[ c^2 = a^2 + b^2 \]

where:

  • \(a = 4\) ft (vertical leg),
  • \(b = 3\) ft (horizontal leg),
  • \(c\) is the length of the cable.

Substituting the values:

\[ c^2 = 4^2 + 3^2 \] \[ c^2 = 16 + 9 \] \[ c^2 = 25 \]

Now, taking the square root of both sides to find \(c\):

\[ c = \sqrt{25} = 5 \text{ ft} \]

Therefore, the length of the cable should be 5 feet.